Anyone using this 5.1 DTS AC3 decoder yet? - diyAudio
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Old 31st January 2012, 01:25 PM   #1
Katch is offline Katch  United Kingdom
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Default Anyone using this 5.1 DTS AC3 decoder yet?

I'm pretty close to buying one of these to build into a case with a 6 channel (3xTA2020) amplifier board to make a nice little home cinema integrated.

It has 2 coaxial inputs which is the main reason I want it - so I can run spdif from my HTPC and from my Blueray player.

Link to decoder board.

5.1 DTS AC3 decode preamplifier board+Remote control | eBay

Planning to build it all in one case with a meanwell 12v switching PSU.

Would love to hear from anyone thats used the decoder board I've linked or anyone doing a similar project.

Decoder board, amp and PSU should all come in around 100 - add 20 for a case and that's not a bad price for a 5.1 decoding amp...
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Old 6th February 2012, 08:07 PM   #2
Katch is offline Katch  United Kingdom
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well, pulled the trigger. just chatting to Arjen about a 6ch amp to pair it with.
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Old 25th February 2012, 04:12 PM   #3
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I bought one. have not used it. its on loan to a friend who also does not want to put time into it (sigh...)

the vol control chip is a mystery. vendor scratched off the markings ;( I lost a lot of interest when I saw that. not to mention that the software is all closed source, has spelling errors and usability errors. to be expected from junk from that region (hate saying it but we all know it to be true).

my goal was to get the chip and throw the rest away, anyway. I don't know if there is special bootstrap code to get the chip running or if it will come up mostly on its own. I suspect there is a lot more to getting the core chip going than just transplanting its riser board. might have to spy on the i2c lines to see what init and control they do. zero hope of getting any source code to do that from the vendor.

wish multichannel was more open; but the vendors have all decided to keep that kind of digital audio CLOSED. this is why many of us totally avoid multichannel DIYs.
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Old 28th February 2012, 09:18 AM   #4
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Quote:
Originally Posted by Katch View Post
I'm pretty close to buying one of these to build into a case with a 6 channel (3xTA2020) amplifier board to make a nice little home cinema integrated.

It has 2 coaxial inputs which is the main reason I want it - so I can run spdif from my HTPC and from my Blueray player.

Link to decoder board.

5.1 DTS AC3 decode preamplifier board+Remote control | eBay

Planning to build it all in one case with a meanwell 12v switching PSU.

Would love to hear from anyone thats used the decoder board I've linked or anyone doing a similar project.

Decoder board, amp and PSU should all come in around 100 - add 20 for a case and that's not a bad price for a 5.1 decoding amp...
Thank you for this advice to Item number: 200618748618.
Are there in the meantime newer versions in this kind, i. e. with HDMI inputs ??
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Old 16th July 2012, 08:29 PM   #5
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hello. i have just recived this decoder. the plan is to mate it up with a 6ch plateamp with 5pc LM3886 and 1pc UcD400. just as a compact system.
i do plan to rip out the OP-amps wich is NE5532, and replace them with AD797.
i'm just waiting for the regulated PSU, transformer and chassis now.

tiefbass: no there is not any newer versions with HDMI.
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Old 16th July 2012, 10:17 PM   #6
qusp is offline qusp  Australia
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hmm AD797 for NE5532? hope youve got a scope...
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Old 16th July 2012, 10:21 PM   #7
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it worked out real good on my DAC. actualy. that DAC is sold with NE5532 or AD797.
no other changes.
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Old 16th July 2012, 10:40 PM   #8
qusp is offline qusp  Australia
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ebay dac? wouldnt be surprised if its not completely stable, though the datasheet says they are, they arent really all that unity gain stable, they are but require some babying and the NE does not require the same, not a drop in replacement in the slightest
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Old 16th July 2012, 10:54 PM   #9
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yes its a e-bay dac. it has worked fine and stable for 3-4 years now.
but if it don't work i just replace them back with the NE5532's.
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